CONTENTS. 



A. Insecticides, . ... 



I. Stomach poisons for biting insects, . 



1. Arsenicals, .... 



(a) Arsenites, 



(1) Paris green, 

 (6) Arsenates, 



(1) Lead arsenate, 



(2) Calcium arsenate, 

 Standard formulas for application. 

 Arsenical injury, 



2. Hellebore 



II. Contact poisons for sucking insects, . 



1. Soaps, ..... 



(1) Whale-oil or fish-oil soap, 



(2) Laundry soap, 

 (.3) Rosin fish-oil soap, soap "stickers, 

 (4) Fish-oil soap and nicotine, 



2. Sulfur sprays, 



(1) Lime-sulfur, ■ 



(2) Dry lime-sulfur, . 



(3) Barium tetrasulfide, 



(4) Soluble sulfur. 

 Formulas for application, 



3. Oil sprays, 



(1) Emulsions, . 



(2) Miscible oils, 



4. Nicotine, 



(1) Nicotine sulfate, . 



5. Pyrethrum, . 



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